Park Tool BBT-4 Chamber Key

The BBT-4 is designed for the installation and removal of 6-notch SC-S and AC-H cartridge shells for sealed cartridge bottom brackets. These bottom brackets have six notches on the outside of each shell. The handle of the BBT-4 is comfortably coated with vinyl. The larger diameter of the tool is nominally 44 mm, the smaller diameter 38 mm.

Features:

The BBT-4 is compatible with the following sealed cartridge bottom brackets:

• Campagnolo
• Veloce food
• Xenon helps
• Mirage food
• Daytona™
• Avanti™